Radiator



March 11 1-924.

a 2 E w Tm .TT8 M mm .M d e l 1 F A A V AV A O O O Patented Nlar. 11, 1924'.

UNETEQ MEINHABD WITTE, 0J5 MINNEAPOLIS, MINNESOTA.

RADIATOR.

Original application filed. October 11, 1920, Serial No. 416,083. Divided and this application filed May 8,

To all whom it may concern:

Be it known that I, MEINHARD Vt ITTE, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Radiators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it 'appertains to make and use the same.

My invention provides an improved circulation-distributing plate or device for the upper tanks of automobile radiators and, generally stated, the invention consists of the novel construction and combinations of parts hereinafter described and defined in the claims.

The present invention is filed as a division of my application, Serial Number 416,083, filed ()ctober 11, 1920, Radiators, now matured into Patent Number 1,450,399.

In the accompanying drawings, which illustrate the present invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a rear elevation with some parts broken away, showing the upper portion of a radiator within the upper tank of which my invention is applied;

Fig. 2 is a vertical section on the line 2-2 of Fig. 1; and

Fig. 3 is a horizontal section on the line 33 of Fig. 1.

The upper tank of the radiator is indicated by the numeral 8. This tank will be connected to the lower tank, not shown, by the usual frame and will be in communication with said lower tank through suitable tubes, which, as shown, are of the arrangement disclosed and claimed in my co-pending application, above identified, the said tubes illustrated being triangular and being indicated by the numeral 10. The upper hose connection shown is in the form of an elbow 16 of the construction disclosed and claimed in my companion divisional application, Serial Number 559,353, filed of date May 8, 1922, and entitled Upper hose connection for radiators.

As a feature of this invention, I provide, within the tank 8, a circulation-distributing and equalizing plate 24, which, at its upper edge, is soldered or otherwise rigidly secured to the back plate of said tank ap Serial No. 559,354.

proximately at the level of the extreme uppermost portion of the water inlet passage through the elbow or upper hose connection 16. This plate 24 is forwardly extended nearly to the middle of the upper tank and is then extended vertically downward approximately to the bottom of said tank. The open ends of the hood-like structure thus formed by the plate 24 are located about midway between the elbow 16 and the sides of the radiator, or, in other words, the ends of the upper tank. Moreover, it is important to note that the water passage formed between the hood-like plate and the rear wall and bottom of the tank has a greater cross-section and, hence, a greater water-conducting capacity than the elbow, so that the water will move more slowly therethrough than through said elbow. Obviously, this deflecting plate distributes the incoming hot water equally towards the opposite ends of the upper tank and equalizes the flow of water through the tubes by preventing it from taking a short cut from the elbow to the centrally located tubes.

It is important to note that the deflecting plate 24 is entirely above the bottom plate of the upper tank 8 and above the extreme upper ends of the several tubes, so that the distribution of water is over the upper ends of the tubes and not around the tubes. By terminating the ends of the plate 24 approxi mately half-way between the center of the elbow 16 and the sides of the radiator, the distribution of the water to the several tubes is made substantially uniform, so that each tube will be given approximately the same circulation of water therethrough. The water delivered toward the sides of the upper tank will be deflected from opposite sides and turned toward the central tubes.

The efficiency of this distributing plate or device applied as described has been demonstrated in actual practice.

What I claim is:

1. In a radiator structure, the combination with an upper tank and a plurality of tubes having their upper ends terminated approximately at the bottom of the front portion of said tank, said tank having at its back and lower portion a centrally located inlet, and a circulation distributing plate attached at its upper edge to the back plate of said tank above said inlet and extending from thence downward toward the bottom of said tank and terminating above the bottom of said tank and at the rear of the ends of said tubes, substantially as described.

2. In a radiator structure,.the combination with an upper tank and a plurality of tubes having their upper ends terminated approximatelyat the bottom of the front portion of said tank, said tank having at its back and lower portion a centrally located inlet, and a circulation distributing plate attached at its'upper' edge to the back plate of said tank above said inlet and extending from thence downwardly toward the bottom of said tank, and terminating above the bottom of said tank and to the rear of said tubes, said distributing plate extending in opposite directions laterally of said inlet-and terminating at points approximately midway between the center of said inlet and the sides of said tank.

In testimony whereof I aflix my signature.

MEINHARD WITTE. 

